no code implementations • 12 Mar 2024 • Florian Müller, Malte Krack
In the present work, first, an analytical approximation of the beam's response on the slow time scale is derived as function of the slider position, which is a crucial prerequisite for identifying the main drivers of the slider's locomotion.
no code implementations • 12 Mar 2024 • Arati Bhattu, Svenja Hermann, Nidhal Jamia, Florian Müller, Maren Scheel, Christoph Schwingshackl, H. Nevzat Özgüven, Malte Krack
Amplitude-dependent modal data was obtained from phase resonance and response controlled tests.
no code implementations • 11 Mar 2024 • Patrick Hippold, Maren Scheel, Ludovic Renson, Malte Krack
For phase detection, an adaptive filter based on the LMS algorithm is used, which is shown to be superior to the synchronous demodulation commonly used.
no code implementations • 2 Jul 2022 • Felix Gehr, Timo Theurich, Carlo Monjaraz-Tec, Johann Gross, Stefan Schwarz, Andreas Hartung, Malte Krack
The measurements are confronted with predictions obtained using two different approaches, state-of-the-art Finite Element Analysis and a recently developed computational approach involving a reduced-order model.
no code implementations • 2 Jul 2022 • Carlo Monjaraz-Tec, Lukas Kohlmann, Stefan Schwarz, Andreas Hartung, Johann Gross, Malte Krack
To this end, we use a recently developed modeling and simulation approach.
no code implementations • 10 May 2022 • Florien Müller, Lukas Woiwode, Johann Gross, Maren Scheel, Malte Krack
In the case of shaker-stinger excitation, the applied excitation force is commonly measured in order to quantify the amplitude-dependent modal damping ratio from the phase-resonant test data.
no code implementations • 11 Feb 2021 • Christian Berthold, Johann Gross, Christian Frey, Malte Krack
The currently available simulation methods for blade flutter account for nonlinear interactions, at most, in only one domain, the structure or the fluid, and assume the behavior in the other domain as linear.
Computational Engineering, Finance, and Science
no code implementations • 17 Nov 2020 • Maren Scheel, Gleb Kleyman, Ali Tatar, Matthew R. W. Brake, Simon Peter, Jean-Philippe Noël, Matthew S. Allen, Malte Krack
The second methodology exploits uncontrolled experiments with broadband random inputs to build polynomial nonlinear state-space models using advanced system identification tools.